Hydraulic coupling.



PATENTED APR. 11, 1905.

J. J. DELEHANT.

HYDRAULIC COUPLING.

APPLICATION FILED MAY 2, 1904.

IN VENTOH JZizn JjeZe/Zanf By W ATTORNEYS No. va /am.

Patented April 11, 1905.

PATENT @rricn.

JOHN J. DELICI'IAN'I, OF UIIHKXHO, ILLINOIS.

HYDRAULIC COUPLING.

SPECIFICATION forming part of Letters Patent No. 787,154, dated April 11, 1905.

Application filed May 2,1904. Serial No, 205,902.

I": r// [HI/mt f mu coll/merit:

Be it known that I, Joux' J. DuLi-mAx'r. a citizen of the United States, and a resident of liicago, in the county ot'Cook and Statcot Illinois. have invented a new and Improved IIydraulic Coupling, ot which the following is a full. clear. and exact description.

.\ly invention relates to hydrauliccouplings, j and more particularly to a type ot coupling I suitahle tor Fastening hose to hydrants, lor coupling hose-sections together, and for general service where a pipe or tuhe of any kind is to he 1 uielv'ly coupled with a memhe r through I which water is to tlow. l

Reference is to he had to the accompanying drawings. forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the ligures.

liigu re l is a perspective view showing my coupling in use upon a hydrant-spout. Fig. 2 is a vertical longitudinal section through the 1 same. Fig. I is a vertical cross-section upon the line of Fig. I looking in the direction of the arrow. Fig. T is a vertical longitudinal section through another term of couplin Fig. 5 is a perspective view of one of the coupling-sections. and Fig. 6 is a cross-section showing the two coupling memhers being moved into position for securing the same toi gether.

Itet'erring to Figs. 1 and 2, the hydrantspout is shown at T and is provided externally with an annular head 8. The hose it) is provided with a memher9, whiehldesignate as a "tenantcou pling-section"and which is secured 1 upon the hose hy pressure of the hand 11, this hand heingclamped hy means of a tightening device 2H, which may he of the usual construction. The tenant coupling-section S) i is provided with a thread 12, and movahly mounted upon this thread is a coupling-head I provided with a comparatively thin porj tion ll and with a cupped edge 15, as shown I in Fig. A washer us, which may he of leather or of any desired material, is encircled hy a washer-holder 17 t annular conformity and threaded interl'ially, as shown. This washer-holder is provided with an annular channel is, which is so cut as to leave a cupped edge 19.

The washer l6 sprung into place i so as to he gripped hy the cupped edge l9, and thus held in engagement with the tenant coupling-section 9. By turning the washer holder l7 the washer may he tightened or loosened. as desired, and is thus rendered removahle as well as adjustahle. The washerholder 17 occupies an annular space 13' in the coupling-head. which is provided internally with a thread 13. matingthat ot' the thread I). The cupped edge l?) of the coupling-head is of suhstantially semicircular form, as shown in Figs. 3, and 0, thus leaving a slot or mutilation l-L. into which the annular head 8 may he slipped laterally, as indicated in Fig. (5.

I\I v invention is used as follows: Suppose it be desired to secure the hose 10 upon the hydrant-spout T. ()rdinarily the hose would he provided with a coupling-section having a thread and the lrvdraiu-spout would also he provided with a thread, so that it would be necessary for the operator to lirst apply the coupling-section to the hydrant-spout and then turn the section until the thread is caught. This is not always easy to accomplish, for the reason that the thread may he damaged or lilled with dirt and the operator may he nervous, as is often the case during a time of excitement. \Yith my apparatus, however, the operator merely grasps the coupling-heml l3 and slips the same laterally over the annular head S of the hydrant-spout T. The coupling-head 13 is next turned so as to force the section 9. carrying the washer 16, toward the hydrant-spout, thus securing an air-tight joint hy pressure upon this washer. One or two turns ol the coupling-head will nearly always accomplish this result. The washer-holder 17 need not he adjusted very often, for the reason that its adjustment is independent ol the coupling ol' the section it upon the hydrant-spout T.

The form shown in Fig. l is preferably used for either connecting two hose-sections together or for connecting a hose-section upon a hydrant-spout. The respective sections to be connected are shown at 21 and 28. the latter heing provided with an annular portion 29. The hose I1 is provided with a hand II,

as ahove described, and the section 2i is pro- The coupling-110ml vided with a thread 22.

23 is provided with a comparatively thin portion 24 and with a cupped edge 25, these parts being substantially the same as the couplinghead 13, provided with the portions 14: and An annular space 26 is formed within the coupling-head 23 and encircled by the thin portion 24 thereof. The respective contact edges 27 30 of the sections 21 and 28 are beveled, as shown, and are preferably ground It will be noted that the thread 12 or 22 is in permanent engagement with all the threads mating it, so that there is no occasion for losing time in catching the thread.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a hydraulic coupling, the combination of a coupling-section provided with a thread, a washer mounted upon the end of said coupling-section, a washer-holder provided with a thread engaging said thread of said coupling member and provided with a portion for engaging said washer, a coupling-head provided with a thread engaging said thread of said coupling-section, and also provided with a cupped edge and with a mutilation bound by said cupped edge, the general direction of said mutilation being lateral to the axis of said coupling-section, and another coupling member provided with an annular bead for engaging said mutilation, and further provided with a portion for engaging said washer.

2. In a hydraulic coupling, the combination of a coupling-section provided with a thread, a collar provided with a thread mating the same and with a portion for clamping a washer against the coupling-section, and a couplinghead provided with a thread mounted upon said coupling-section, said coupling-head being provided with a portion for engaging another coupling-section.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN J. DELEHANT. WVitnesses:

GEO. W. TISOHART, E. J DE GRAssE. 

